What do humans and Homo erectus have in common?

01/28/2013 | New Scientist

Adult human molar roots form for at least a year before erupting from the gum line, according to research published in the journal PLoS ONE. Researchers say the majority of the formation of teeth has evolved to keep up with longer human lifespans, except for the adult molar, which appears to develop at the same speed now as it did with the Homo erectus, our early ancestors.

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